A man, a woman and a boy can complete a
work in 20 days. 30 days and 60 days
respectively. How many boys must assist 2
men and 8 women so as to complete the work
in 3 days?

• in 1 day w.d by 1 man=1/20
  in 1 day w.d by 1 woman=1/30
  in 1 day w.d by 1 boy=1/60
  in 3 days w.d by men and woman=3*(1/20+1/30)=3/12
  remaining work=1-3/12=9/12=3/4
  in 3 days w.d by 1 boy=1/20
  => no of boys who finish 3/4 work in 3 day=20*3/4=15 boys
  
• 10 years agoHelpfull: Yes(3) No(3)
• 15 boys is the answer
• 11 years agoHelpfull: Yes(2) No(3)
• Dummy question
• 11 years agoHelpfull: Yes(2) No(1)
• 1 man in 1day does 1/20 part then , 2 men will do 1/10 part in a day,
  similarly 8 women will do 8/30 part of the work in a day, and let x be the no. of boys, then they will do x/60 part in a day
  thus we have 2*(1/10 + 8/30 + x/60) = 1 then x=8 ans.
• 11 years agoHelpfull: Yes(2) No(1)
• question might be wrong
• 11 years agoHelpfull: Yes(1) No(1)
• 8 days is the correct answer
• 11 years agoHelpfull: Yes(0) No(1)
• Answer is 4 but the question solved earlier was not corect
• 10 years agoHelpfull: Yes(0) No(1)
• 8+2+x=3
  13+6+x=3
  3-19=x
  x=16
  
• 9 years agoHelpfull: Yes(0) No(0)
• sob sala bokachoda akta question slove korche , 4 te answer berocche, m.c
• 6 years agoHelpfull: Yes(0) No(0)